Electricity Class 10 PYQ Taught Wrong!😱😱

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Автор

me to R nikal K I nikalke dono add kr k ans paya 😂😂😂😂

Ytrthh
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Reason for adding power in parallel:
Let two devices use power P1 and P2 and are connected in parallel and of course the voltage V is same and current I1 and I2 passes through them respectively.
So
P1=V I1
I1= P1/V 1

P2=V I2
I2= P2/V 2

Adding 1 and 2:
I1+I2 = P1/V+P2/V
= P1+P2/V

So that's why this happens, instead of just cramming that power are added in parallel, everyone should know the logic behind .
Peace ✌️

fanblock_
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from Video's title-- the method is wrong
but the teacher splits to this question is too long..
Very good 👍🏻

pokemonlover
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Just the voltage remains the same in parallel that's why👍

underratedviewer
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Just remember this - "parallel me power sidha add ho jate he."

Amy-igp
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Maine pehle dono ka individual resistance nikalkar parallel combination waale formula se equivalent resistance calculate kiya aur phir Ohm's Law apply kiya

LakshyaShihani
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Sir, this numerical can also be solved by this way ----
Since, we know that the potential difference is constant in parallel connection, therefore the VOLTAGE will be same in all the lamps.

P1= 100w
P2= 10w

Now,
P1 = V²/R1 = R1 = V²/P1 = 484 ohm.

Again,
P2 = V²/R2 = R2 = V²/P2 = 4840 ohm

Now,
I1 = V/R1 = 0.454 A ( OHM'S LAW)

Similarly,
I2 = V/R2 = 0.045 A (OHM'S LAW)

Now, we will add I1 and I2 to get the total current flowing through the circuit,
Ip = I1+I2 = 0.499 A, i.e, 0.5 A ( p stands for Parallel)

Thank me later! ❤

amlanbiswas
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Ye question mere boards exam m aaya tha aur mne shi kiya tha mujhe yaad h

animallover-vt
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isko wrong taught nhi kehte long method kehte hai🤷

parthdwivedi
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2020 me to exam v nehi hua thha corona k liye 😮

RevolutionEducation
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What happens to power in a series combination? Are the powers added or are their reciprocals added?

saatvikkhanna
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Parallel me to reciprocal karke add hota hai na???

kaanhanagpal
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Arey ye question 2020 mai Aya tha.
Mean while - 2020 COVID 19 in continuing 😅😅😅.

dhirendrakumarpatra
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i have a question sir ❓
Can cbse detect marks, if this question is in more marks

pinkidubey
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John Jacobs ke eyeglasses mein acche lagte ho sir
mere pass bhi same ash colour ka eyeglass hai

Red-qeft
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Sir what if is the voltage is not same in both the conditions??

jyotikasaxena
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sir aapne power to add krdi lekin voltage add kyo nhi

priyanshu-ztoy
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Mukjse is ch ke numericals solve nahi ho rahe hai ue nahi samjh aa raha ki kon sa formula kab apply karna hai
Par khoch numericals solve karne ke baad ye ache se samjh aa gaya ke Power ke formula kis par kon sa apply karna hai par abhi bhi bhot se doubt hai

prahlad
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Sir method joh payada h voh galat nhi h schools ma mera ma joh aap kha rha ho vohi hi padaya h but voh thoda lamba h but it's not wrong main isliye kha rha hu kyuki ma test ma long method sa kar ka aaya hu

shourya__gupta
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Dont tell wrong tell it long method...
The 2 methods are current

AshishSingh-srlx